Mechanical drier



2 SHEETS-SHEET 1.

No. 888,474. PATENTED MAY 28, 1808, W. M. SUMMER.

MECHANICAL DRIER,

APPLICATION FILED SEPT. 3. 1907.

ATTEST; INYWNT@R ll-iam Mfimwm H 7 W6 No. 889,474. PATENTED-MAY 2 1908.

I W. M. OUMMER.

. MECHANICAL DRIER.

APPLICATION FILED SEPT. 3. 1907 2 SHEETS-SHEET 2.

' 4 1 William flfiummcr.

W BY hzAMY U/W/r WYS.

- front or en ply 'peratures Within said rran WILLIAM M. coin/Inn,

or CLEVELAND, onro,

ME CHANIGAL DRIER To all whom it may concern:

Be It known that 1, WILLIAM M. QUIXEMER, a'c1t1zen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Mechanical Driers,

and do declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to mechanical driers, and the invention consists in the construction and combination of parts substantially as shown and described and particularly pointed out in the claims.

In the accompanyin drawings, Fi 'ure 1 is a longitudinal sectional elevation of the .drier cylinder and of my new and original installation or setting thereof with furnace and in closing walls. Fig. -2 is a side elevation of a longitudinal portion of section or" the cylinder and Fig. 3 is a cross section of Fig. 2. Fig. 4 is a cross section of central portion and of the setting therefor inworking relation.

Having reterenefirst to the setting or Walls of cylinder t), I show an inclosed chamber about a portion thereof constructed with a'short arch A beneath and side Walls a, inclosing section 3 of' the cylinder. This leaves. thefirst section or portion 2 of the cylinder more or less directly exposed to the products'of combustion from furnace F, but there is no outlet from about this section or space except at the bottom, so that the prod nets of combustion must pass thence rearward. The said Walls a closely encircle cylinder Cand are each provided With openings 5 controlled by suitable dampers 6. from the outside, and openings ,7 closed by doors 8- in the outer sides or Wall of the setting to admit more or less fresh air as occasion may demand.

Walls and chamber are under the absolute control of the operator.

in drying some materials it is desirable that the temperature should be lower at the end of the cylinder than with others, an 'that it should be gradually increased toward the rear or dischar e end. Yet'it Ina be necessary that the shelof the cylinder SAOtlld have at least su'llicient heat at all points to prevent certain. substances from smoking or adhering to the surface thereof, Some substances also will not permit Specification of Letters Patent. I Application filed. Qe'p'tember 3, 1907.

a complete cylinder in its- Ea'tented 2t 1903.

Serial No. 391,151.

heating to a very high degree before a certain amount of moisture has been taken off, for the reason that, if heated and having a cer tain temperature before moisture be taken .ofi, they become soluble in their own moiscylinder. The style of setting herein and the construction of the cylinder itself, are adap characteristics and needs of all materials.

N ow, referring especially to tion of the cylinder, the same is built in its main or middle portion, sections 3 and 4, with a series of lengthwisesheets S, segmen talin cross section In their mainportion and curved according to the diameter of the cylinder. Said sheet or plates S are also provided with inwardly extending ing compound curvatures 12- and inner guard and lift portions -14- and-l5- integral or aflixed. The said curvatures l2- start with. a rather short inward bend at nearly right angles to the convex surface of plate S and th e recurve to their engagement with channel-bars D. This atl'ords ample Hence, also the tent room between the said segments for the inflow of air through said channel-bars as Well as sages or openings 17 The respective sections S, are riveted lengthwise to the flanges of said channel-bars and the draft inlets or o enings 17- in said bars are in such num er and size that they permit the products of combustion and heated air to enter the cylinder in the desired volume. Of course, some of said products and heated airwill pass to the rear and enter through'the open end of the cylinder, and the said channel-bars in this instance are co-extensive With plate S, While end se ions 2- and -9 are closed about their sides. The said portions -14 and of pl S serve both as lift blades for the material and as guards for the draft opcniu 's, an d special 7 uard blades L are located lengthwise inward Erom bars D on suitable brackets -195- affixedto the wall of the cylinder 0 and are of such elevation or width as compared with said guards1e and -15- as to permit of inward curving at *20 over and above edge l5- and to overlap the same in a sheltering manner While at the same time ample draft space is reserved between said blades or guards. ihe bend 20 being in the shape of a curve and not a sharp corner prevents accumulation of materialthereon.

ture and adhere to the internal parts of the ed to take care of these varying conditions,

the construcportions hav-' serving partially as guards for inlet air pas pockets between plates L and in bars D, and the ends of SEtlLl intercept dust an pass inward beneath Guards L are set apart from the wall of the cylinder on brackets -l9- to let material the same it works heck from about the draft openings. The speed of rotation is such as to allow of the guards .l 4- Being completely emptied during their travel through the period of cascading, and six to ten reyolutions per' n'iinute serve this purpose, Now, use new and important im prove-merit in this class of cyl nders, l. provide the inlet or draft openings through channel-bars D with special guards G on their outside. These guards are open at both ends and haveopenings at their bottom orsides which register with openings -'l 7 guards have inwardly extendin flanges p which serve to materie that otherwise fmight'creep out and which is detained thereby endsreturned to the cylinder when the cylinder turns around. By these means I prevent allesc'ese of material in any form throu gliltheseid draft openings or chennels 17, while at the same time the said channels are unobstructed for the purposes of draft inlet. Furthermore, and to more clearly a preciate the value ,of guards G in this mac inc, '1 may state that the suction fan usually placed in chamber M is driven independently of the cylinder, and thre is alikeliho0d,.at times, of the fan being stopped or slecked down in its speed d hile at the same time the cylinder is going at the usual. rate of speed. 111 that case any dust or Small specks coming from the material in the drier is intercepted and returned, and this so far as Ilrnowend believe has never been done before. v

When blades 14 and L are in the lower position during rotation they serve especiall as guards to prevent car-seeding; insiterial irom' tailing into the pockets lXlA-VOQH them and thus also preventing the draft 0 enings from being closed. lLVhen seid center of rotation on-the cascading side they become lift blades,

stead of being at approximetel adapted to cascade the nieterialas they rise to higher elevations. Blades-N cascade the material in like manner. These latter blades are curved inward at their inner edges in- .right angles as heretofore, whereby they e cctuelly prevent the accumulation of material thereon. By these rneans, also,

caded'more effectively across the entire area of the cylinder than heretofore without rn- .cedingcngle and thus deprive this .currin before cascading occurs, and in which it would fall on the back of the preortion oi the material of a roper amount or exposure through the circu sting air and heat. Said blade-s N extend theentire length of the cylinder.

event the material is casconcentric. 'wi th the our.

therein directly to the products In driers of this class there are various reasons why the 'lin ler should have one or both ends plain and limit opcnin with guards mil in or elm (he middle porticm thereof, and pzu-liculm in coimerlion wirh certain nurtcrinls plain cylindrical ends "i he as herein sol: 'l'orth.

and are .llllll? of scgnwnts S, and hence there no ohslrucli-m. l our (mo. section to rial is uniform and continuous tluor'lgh the cylinder. Aticntlrm is also expressly called to the formation of plates. S at the outside of channel lmrs l), where the primary curve all said plates carries them inward away from said bars and from over guards G in such measure as to allord free open draft-ways through the ends of said guards into the cylinder. Oi course any equivalent construction of outer guards Gina y he adopted.-

Whet I claim is 1. in a mechanical drier, a setting; for a drier cylinder having it walled chamber in the line of draft provided. with damper contnzilled drai't openings.

2. A setting for a drying cylinder provided with a chamber ads ted to inclose a section of he cylinder, stud chamber having an arched bottom and draft openings into the same.

setting for a drying cylinder having a suitable furnace, a w 5d chamber apart from the inrnsce adap l. to inclose e poren open. space l ction of thecylinder and tween said chamber and lurnocc adapted to expose the front portion of the cylinder of combustion.

4. A. setting a drying cylinder constructed v h walled chsnoer having an arched bottom and draft controlled openings entering the sex and a cylinder l1 ring iinperiorete poi cion expose" in Front of chamber and perforsted portion in. said chamber. A setting for mechanical driers having a chamher provided with draft openings an dmnpers for openings, in combination with s drying cylinder havingdraft openings exposed in said chamber, whereby controlled draft is afforded to u. portion or said cylinder.

6. A mechanical drier comprising a cylinder having plain cylindrical ends and e middle portion provided with drel't inlets, in combination with a setting for the cylinder lisvinna walled chamber inclosing a portion the sarne into the cylinder.

of sai cylinder and provided with openings to direct the productsci combustion through 7. A. drying cynndrrcel ends IldSllBfilIig {ii ,mder having imperial-ate 11d portion between said gs through the wall ens g PM, outside s opemngs.

l .r z i 8. A cry-mg noting slur ens the other and the How ol the malew Lin portions and a middle portion constructed 13. A drying cylinder having successive -wi'th plates segmental in cross section in draft enings through the same and subtheirmain portion, and spacing members stantialy barrel shaped guards over said -provided with draft openings at intervals openings having open internally flanged ends 45 rigidly uniting said plates. and openings in their bottoms registering 9. A dry1ng cylinder having plain cylinwith said draft openings. drical ends and a portion between said ends 14. The drying cylinder formed with formed of as'eries of segmental lates lengthplates running lengthwisesegmental in wisethereof, and channel mem ers connectcross section in their main portion and se- 50 -ing said plates provided with draft openings, cured to opposite edges of channel-bars sujcsaid plates each havmg inwardly curved porcessively, said channel-bars set at right tionsengaged with the inner flanges of said angles to the periphery of the cylinder and channel members. provided with a series of draft openings 10. A drying cylinder having a portion through the web thereof, and guards about 55v I thereof formed of plates segmental in cross boththe inside and the outside of said draft n 35 tween its ends and curved transversely to the In testimony whereof I sign this specificasection in their main .portion and'withcomopenings. 1

pound curves in their other portion, and 15. A drying cylinder having openings' angle-bars having draft openings connecting through the shell thereoffor admission of said plates between opposite edges respecproducts of combustion and guards with 60 tively, whereb the compound curved poropen ends over the outside of said openings. .tion of each plate will come outside of the 16. A drying cylinder having inlet opencorresponding angle-bar and a. free draft ings at intervals, in combination with guards space into the. cylinder is aflorded. over the outside of said openings open at 11.- A drying cylinder formed with plates both ends.

running longitudinally and curved in cross 17. A drying cylinder having inlet opensection in their outer portion and each havings, in combination with substantially baring an inwardly curved inner portion, and rel shaped guards therefor having open ends rigid angle-bars uniting the outer edge of one and openings in the side corresponding to plate and the inner curved portion of another said openings in the cylinder. 70

plate on difierent edges thereof, said bars 18. A dryingcylinder having straight and provided with draft openings, and guards flat sided parts running lengthwise and proover the outside of said openings. V vided with inlet openings, in combination 12. In drying cylinders, a cylinder conwith guards fixed over said openings on the structed with plates running lengthwise beoutside of said cylinder.

curvature of the cylinder in their main portion in the presence of two Witnesses. tion, channel bars uniting said plates andeach plate having an inwardly curved por- WILLIAM OUMMER' tlon fixed to the inner flange of the corre- Witnesses: 40. sponding bar, said bars having draft open- E. M. FISHER, ings, and guards about said openings. R. B. MosER.

, I i f V," l

TWIN, era-me nt. ram'nw z" 

